Nemotron 3 Nano 30B A3B vs Laguna XS 2.1 vs Grok 4.20

Nemotron 3 Nano 30B A3B at $0.058 in and $0.230 out, Laguna XS 2.1 at $0.069 in and $0.138 out, and Grok 4.20 at $1.44 in and $2.88 out — per million tokens, from the same wallet.

Nemotron 3 Nano 30B A3B

NVIDIA

0.05¢

for a client proposal

$0.058 in · $0.230 out / 1M

262K context · released December 2025

Full page →

Laguna XS 2.1

Poolside

0.05¢

for a client proposal

$0.069 in · $0.138 out / 1M

262K context · released 1 month ago

Full page →

Grok 4.20

xAI

0.95¢

for a client proposal

$1.44 in · $2.88 out / 1M

2M context · released 4 months ago

Full page →

Asking all three at once — identical prompt, identical context — costs about 1¢ for a typical client proposal.

At a glance

Cheapest input: Nemotron 3 Nano 30B A3B at $0.058 per million tokens.
Cheapest output: Laguna XS 2.1 at $0.138 per million tokens.
Largest context: Grok 4.20 at 2M tokens — about 2,900 pages.

Cost per task

Estimated totals at the rates above. Solid bar is input, lighter bar is output.

Quick code fix

2K in · 500 out

Nemotron 3 Nano 30B A3B

0.02¢

Laguna XS 2.1

0.02¢

Grok 4.20

0.43¢

Draft a client proposal from notes

5K in · 800 out

Nemotron 3 Nano 30B A3B

0.05¢

Laguna XS 2.1

0.05¢

Grok 4.20

0.95¢

Context-heavy session (Alyph workspace)

155K in · 4K out

Nemotron 3 Nano 30B A3B

0.98¢

Laguna XS 2.1

1.1¢

Grok 4.20

$0.23

Analyze a 50-page legal contract

35K in · 1K out

Nemotron 3 Nano 30B A3B

0.22¢

Laguna XS 2.1

0.26¢

Grok 4.20

$0.05

Large architecture refactor

250K in · 3K out

Nemotron 3 Nano 30B A3B

1.5¢

Laguna XS 2.1

1.8¢

Grok 4.20

$0.74

Long-context rate applied at this input size.

Solid part of each bar is input tokens, the lighter part is output. Models that don’t fit a task are marked instead of priced.

Cost vs Token Amount

Drag the slider to adjust the split between input and output workload.

80% Input20% Output

Nemotron 3 Nano 30B A3B

Laguna XS 2.1

Grok 4.20

Adjust the ratio slider to change how output tokens influence the final price for equivalent workloads.

Pricing

Nemotron 3 Nano 30B A3B

Laguna XS 2.1

Grok 4.20

Input / 1M tokens

$0.058

$0.069

$1.44

Output / 1M tokens

$0.230

$0.138

$2.88

Cached input / 1M

$0.035

$0.230

Web search

—

0.57¢ / search

Specs

Nemotron 3 Nano 30B A3B

Laguna XS 2.1

Grok 4.20

Provider

NVIDIA

Poolside

xAI

Released

December 2025

1 month ago

4 months ago

Context window

262K

Max output

262K

33K

—

Input

Text

Text, Images, and Files

Output

Text

Reasoning

Shows its thinking

Knowledge cutoff

—

2025-09-01

Try it with real numbers

2K tokens in · 500 tokens out.

Nemotron 3 Nano 30B A3B

NVIDIA

0.02¢

for this task

50% input · 50% output

Full pricing →

Laguna XS 2.1

Poolside

0.02¢

for this task

67% input · 33% output

Full pricing →

Grok 4.20

xAI

0.43¢

for this task

67% input · 33% output

Full pricing →

All 3, same prompt and context: 0.47¢. That is the entire cost of the comparison.

Your $5 welcome credit covers about 1,052 of these.

Which should you pick?

For long documents, Grok 4.20 has the largest context window here — 2M tokens.

On price, Laguna XS 2.1 is the cheapest of the three on a typical task, at about 0.05¢.

For images or files, Grok 4.20 can read them directly; Nemotron 3 Nano 30B A3B and Laguna XS 2.1 are text-only.

Or don’t pick. Send the identical prompt to all three, read the answers side by side, and keep the winner. How to run a fair bake-off →

Nemotron 3 Nano 30B A3B pricing →Laguna XS 2.1 pricing →Grok 4.20 pricing →Try other combinations →

Questions, answered

Which is cheapest — Nemotron 3 Nano 30B A3B, Laguna XS 2.1, or Grok 4.20?

On a typical client proposal (5K tokens in, 800 out): Laguna XS 2.1 at 0.05¢; Nemotron 3 Nano 30B A3B at 0.05¢; Grok 4.20 at 0.95¢. Long prompts can change the order when long-context rates apply.

Which has the largest context window?

Grok 4.20 — 2M tokens, about 2,900 pages.

Can I run Nemotron 3 Nano 30B A3B, Laguna XS 2.1, and Grok 4.20 side by side on Alyph?

Yes — that is what Alyph is built for: the identical prompt with identical context to all 3, answers rendered side by side, billed from one wallet. This exact combination costs about 1¢ for a typical task.

Ask all three at once

Identical prompt, identical context, answers side by side — about 1¢ for a typical client proposal. Free to start, with $5 of credit.